Analysis of water reuse situations and potentials in main cities in upper reaches of the Yangtze River Basin: A case study in Luzhou City

HAO Shuran; CHEN Zhuo; LIU Fanghua; LEI Xuefei; SUN Lijuan; YAN Han; HU Hongying

doi:10.13205/j.hjgc.202502006

Volume 43 Issue 2

Feb. 2025

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HAO Shuran, CHEN Zhuo, LIU Fanghua, LEI Xuefei, SUN Lijuan, YAN Han, HU Hongying. Analysis of water reuse situations and potentials in main cities in upper reaches of the Yangtze River Basin: A case study in Luzhou City[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(2): 47-61. doi: 10.13205/j.hjgc.202502006

Citation:

HAO Shuran, CHEN Zhuo, LIU Fanghua, LEI Xuefei, SUN Lijuan, YAN Han, HU Hongying. Analysis of water reuse situations and potentials in main cities in upper reaches of the Yangtze River Basin: A case study in Luzhou City[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(2): 47-61. doi: 10.13205/j.hjgc.202502006

Citation:

HAO Shuran, CHEN Zhuo, LIU Fanghua, LEI Xuefei, SUN Lijuan, YAN Han, HU Hongying. Analysis of water reuse situations and potentials in main cities in upper reaches of the Yangtze River Basin: A case study in Luzhou City[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(2): 47-61. doi: 10.13205/j.hjgc.202502006

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Analysis of water reuse situations and potentials in main cities in upper reaches of the Yangtze River Basin: A case study in Luzhou City

doi: 10.13205/j.hjgc.202502006

1. Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), Beijing Laboratory for Environmental Frontier Technologies, School of Environment, Tsinghua University, Beijing 100084, China;
2. Research Institute for Environmental Innovation (Suzhou), Tsinghua, Suzhou 215163, China;
3. Luzhou Housing and Urban-Rural Development Bureau, Luzhou 646000, China;
4. CAUPD Beijing Planning & Design Consultants Co., Ltd., Beijing 100044, China

Received Date: 2023-08-22
Accepted Date: 2023-12-07
Rev Recd Date: 2023-10-23

Abstract

Abstract

The sewage treatment and reuse situation, and water reuse potential in 9 provinces (autonomous regions, municipalities) and 51 selected cities in the upper reaches of the Yangtze River Basin were systematically analyzed. The reclaimed water utilization policy, planning, and upgrading plan of typical areas in the upper reaches of the Yangtze River, were discussed, taking Luzhou City, Sichuan Province as an example. In 2021, the total amount of reclaimed water used by the 51 selected cities in the upper reaches of the Yangtze River Basin was 1.01 billion m³, and it was estimated that there will be a potential growth of 0.67 billion to 1.34 billion m³ per year in the future. There were significant differences in reclaimed water reuse quantity and rate among the selected cities in the upper reaches of the Yangtze River Basin. The water reuse rates of 28 upstream cities of the Yangtze River Basin were less than 25%, and obviously there is huge room for improvement. Through the analysis of the pricing strategy of reclaimed water in Luzhou City, the discussion on the operation mode of sewage treatment and reuse, and the analysis of relevant policies, the objective based analysis and process planning of the policy formulation of reclaimed water use was proposed, to further standardize and improve the utilization rate. In general, the policy formulation of reclaimed water utilization proposed in this paper is not only applicable to Luzhou City, but also provides a useful reference for other important cities in the upper reaches of the Yangtze River. Through scientific and reasonable pricing mechanism, flexible and diversified operation mode and systematic policy guarantee, it can effectively improve the utilization efficiency of reclaimed water, and promote the sustainable development of regional water resources, and contribute to the realization of the goal of ecological civilization construction.
- the upper reaches of the Yangtze River Basin,
- Luzhou,
- water reuse situation,
- water reuse potential

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References(40)

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